/* 公共css */
*{
    margin: 0;
    padding: 0; 
    box-sizing: border-box;
}
body{
    font-size:13px;
    color: #666;
    min-width: 320px;
    max-width: 1024px;
    margin: 0 auto;
}

a{
    font-size:13px;
    text-decoration: none;
}

ul,ol{
    list-style-type: none;
}

  
@media screen and (min-width:320px){
    html{
        font-size: 21.33px;
    }
}

@media screen and (min-width:375px){
    html{
        font-size: 25px;
    }
}

@media screen and (min-width:414px){
    html{
        font-size: 27.6px;
    }
}

@media screen and (min-width:640px){
    html{
        font-size: 42.66px;
    }
}

@media screen and (min-width:750px){
    html{
        font-size: 50px;
    }
}

@media screen and (min-width:980px){
    html{
        font-size: 65.33px;
    }
}

@media screen and (min-width:1024px){
    html{
        font-size: 68.26px;
    }
}
